Articles tagged "Bessle beam"

The 16th European Microscopy Congress 2016
Efficient generation of electron Bessel beams using generic magnetic vortex structures
Changlin Zheng (1), Timothy C Petersen (2), Holm Kirmse (3), Wolfgang Neumann (3), Joanne Etheridge (1, 4)
1. Monash Centre for Electron Microscopy, Monash University, Melbourne, Australie 2. School of Physics & Astronomy, Monash University, Melbourne, Australie 3. Institute of Physics, Humboldt University of Berlin, Berlin, Allemagne 4. Department of Materials Science and Engineering, Monash University, Melbourne, Australie
As espoused by Montgomery1 and later by Durnin et al.2, the Helmholtz equation admits solutions which are invariant with respect to free space propagation, known…